diff --git a/v2rayN/v2rayN/Handler/ConfigHandler.cs b/v2rayN/v2rayN/Handler/ConfigHandler.cs
index 687a45e2..3880242b 100644
--- a/v2rayN/v2rayN/Handler/ConfigHandler.cs
+++ b/v2rayN/v2rayN/Handler/ConfigHandler.cs
@@ -3,7 +3,6 @@ using System.IO;
 using System.Text.RegularExpressions;
 using v2rayN.Base;
 using v2rayN.Mode;
-using v2rayN.Tool;
 
 namespace v2rayN.Handler
 {
diff --git a/v2rayN/v2rayN/Handler/UpdateHandle.cs b/v2rayN/v2rayN/Handler/UpdateHandle.cs
index 5c9b4e31..d325f1ce 100644
--- a/v2rayN/v2rayN/Handler/UpdateHandle.cs
+++ b/v2rayN/v2rayN/Handler/UpdateHandle.cs
@@ -9,7 +9,6 @@ using System.Windows;
 using v2rayN.Base;
 using v2rayN.Mode;
 using v2rayN.Resx;
-using v2rayN.Tool;
 
 namespace v2rayN.Handler
 {
diff --git a/v2rayN/v2rayN/Tool/FileManager.cs b/v2rayN/v2rayN/Tool/FileManager.cs
index bdfa0fd5..4fa627b8 100644
--- a/v2rayN/v2rayN/Tool/FileManager.cs
+++ b/v2rayN/v2rayN/Tool/FileManager.cs
@@ -2,7 +2,7 @@
 using System.IO.Compression;
 using System.Text;
 
-namespace v2rayN.Tool
+namespace v2rayN
 {
     public static class FileManager
     {
diff --git a/v2rayN/v2rayN/Tool/QueryableExtension.cs b/v2rayN/v2rayN/Tool/QueryableExtension.cs
index 218f7273..258456bf 100644
--- a/v2rayN/v2rayN/Tool/QueryableExtension.cs
+++ b/v2rayN/v2rayN/Tool/QueryableExtension.cs
@@ -1,7 +1,7 @@
 using System.Linq.Expressions;
 using System.Reflection;
 
-namespace v2rayN.Tool
+namespace v2rayN
 {
     public static class QueryableExtension
     {
diff --git a/v2rayN/v2rayN/Tool/SemanticVersion.cs b/v2rayN/v2rayN/Tool/SemanticVersion.cs
index 5b01242e..c23b7a67 100644
--- a/v2rayN/v2rayN/Tool/SemanticVersion.cs
+++ b/v2rayN/v2rayN/Tool/SemanticVersion.cs
@@ -1,6 +1,6 @@
 using v2rayN.Base;
 
-namespace v2rayN.Tool
+namespace v2rayN
 {
     public class SemanticVersion
     {
diff --git a/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs b/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs
index cb7b8913..898ba6d1 100644
--- a/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs
@@ -19,7 +19,6 @@ using v2rayN.Base;
 using v2rayN.Handler;
 using v2rayN.Mode;
 using v2rayN.Resx;
-using v2rayN.Tool;
 using v2rayN.Views;
 
 namespace v2rayN.ViewModels